Virtual image formation in a negative lens

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Originally uploaded to English Wikipedia. Created by DrBob as claimed on en:User:DrBob/Figures.

Upload history:
 17:43, 2 Dec 2004 . . DrBob (5319 bytes) (Reverted to earlier revision)
 12:37, 23 Nov 2004 . . Spiff (8271 bytes)
 00:36, 9 Oct 2004 . . DrBob (5319 bytes) (pngcrushed version)
 11:49, 20 Jul 2002 . . (Automated conversion) (7030 bytes)